Smart Precision Barometer and Altimeter Sensor

DP203B Smart Precision Barometer and Altimeter Sensor Descriptions

The DP203B employs a MEMS pressure sensor with an I2C inferface eo provide accurate temperature, preesure or altitude data. The sensor pressure and temperature outputdigitized by a high resolution 24-bit ADC. The altitude value is calculated by a specific patented algorithm according to the pressure and temperature data. Data compensation is integrated internally to save the effort of the external host MCU system. Easy command-based data acquisition interface and programmable interrupt control is available. Typical active supply current is 5.3μA per measurement-second while the ADC output is filtered and decimated by 256. Pressure output can be resolved with output in fractions of a Pascal, and altitude can be resolved in 0.1 meter. Package is surface mount with a stainless steel cap and is RoHS compliant.

DP203B Smart Precision Barometer and Altimeter Sensor Features

• Supply voltage: 1.8V to 3.6V
• Pressure rang: 300mbar ~ 1200mbar
• Programmable events and interrupt controls
• Fully data compensated
• Direct Reading, compensated:
  -Pressure: 20-bit measurement (Pascals)
  -Altitude: 20-bit measurement (Meters)
  -Temperature: 20-bit measurement (Degrees Celsius)  
• Altitude resolution down to 0.1 meter
• Standby current: <0.1 uA
• Operation temperature: -40 to +85℃
• High-sped I²C digital output interface
• Size: 3.6 mm x 3.8 mm x 1.2 mm

DP203B Smart Precision Barometer and Altimeter Sensor Applications
• Mobile altimeter / barometer
• Smart phones / tablets
• Industrial pressure and temperature sensor system
• Adventure and sports watches
• Weather station equipment
• Indoor navigation and map assist
• Data loggers for pressure, temperature and altitude
• GPS enhancement for emergency services 

DP203B Smart Precision Barometer and Altimeter Sensor Mechanical and Electrical Specifications

1. Pressure and Temperature Characteristics

2. Electrical Characteristics

*OSR stands for over sampling rate

3. Absolute Maximum Rating

Stresses above those listed as 'absolute maximum ratings' may cause permanent damage to the device. This is a stress rating only and functional operation of the device under these conditions is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability